53011689318 has 96 divisors (see below), whose sum is σ = 133202534400. Its totient is φ = 14923666368.

The previous prime is 53011689299. The next prime is 53011689337. The reversal of 53011689318 is 81398611035.

It is a happy number.

53011689318 is a `hidden beast` number, since 530 + 1 + 1 + 6 + 89 + 31 + 8 = 666.

It is an interprime number because it is at equal distance from previous prime (53011689299) and next prime (53011689337).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5061355 + ... + 5071817.

It is an arithmetic number, because the mean of its divisors is an integer number (1387526400).

Almost surely, 2^53011689318 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 53011689318, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (66601267200).

53011689318 is an abundant number, since it is smaller than the sum of its proper divisors (80190845082).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

53011689318 is a wasteful number, since it uses less digits than its factorization.

53011689318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11066 (or 11063 counting only the distinct ones).

The product of its (nonzero) digits is 155520, while the sum is 45.

The spelling of 53011689318 in words is "fifty-three billion, eleven million, six hundred eighty-nine thousand, three hundred eighteen".